Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of Methylene Blue and Cu(II) cations in solution

Table 1 Kinetic parameters of the ME and Cu(II) cations adsorption on ASN and ASN-MPs at 27 °C and pH 7

Adsorbent-adsorbate	q_exp × 10^− 2 (mmol g^− 1)	Pseudo-first-order		Pseudo-second-order
Adsorbent-adsorbate	q_exp × 10^− 2 (mmol g^− 1)	k₁ × 10⁻² (min^− 1)	R²	k₂ × 10^− 3 (g mmol^− 1 min^− 1)	R²
ASN-ME	9.65 ± 0.07	5.8	0.833	3.8	0.989
ASN-Cu(II)	15.05 ± 0.03	11	0.873	7.0	0.994
ASN-MPs-ME	11.52 ± 0.06	9.6	0.896	9.0	0.988
ASN-MPs-Cu(II)	17.35 ± 0.09	14	0.819	9.8	0.999

ISSN: 2468-2039